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2980581397 = 3196147787
BaseRepresentation
bin1011000110101000…
…0001000000010101
321200201111020000121
42301222001000111
522101012101042
61211432111541
7133601344453
oct26152010025
97621436017
102980581397
11129a507a12
126b22355b1
13386675941
14203bcd9d3
15126a0a367
hexb1a81015

2980581397 has 4 divisors (see below), whose sum is σ = 3076729216. Its totient is φ = 2884433580.

The previous prime is 2980581341. The next prime is 2980581403. The reversal of 2980581397 is 7931850892.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2980581397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2980585397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48073863 + ... + 48073924.

It is an arithmetic number, because the mean of its divisors is an integer number (769182304).

Almost surely, 22980581397 is an apocalyptic number.

It is an amenable number.

2980581397 is a deficient number, since it is larger than the sum of its proper divisors (96147819).

2980581397 is an equidigital number, since it uses as much as digits as its factorization.

2980581397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96147818.

The product of its (nonzero) digits is 1088640, while the sum is 52.

The square root of 2980581397 is about 54594.7011806091. The cubic root of 2980581397 is about 1439.1310016997.

The spelling of 2980581397 in words is "two billion, nine hundred eighty million, five hundred eighty-one thousand, three hundred ninety-seven".

Divisors: 1 31 96147787 2980581397